shell:$ nslookup -timeout=2 -retry=1 'ma.whois-servers.net'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
ma.whois-servers.net	canonical name = whois.ripe.net.
Name:	whois.ripe.net
Address: 193.0.6.135
Name:	whois.ripe.net
Address: 2001:67c:2e8:22::c100:687